Q:

What is the opposite of dilated pupils?

A:

Quick Answer

The opposite of dilated pupils are constricted pupils. Constricted, or small pupils, can occur for a variety of reasons including eye injuries, brain trauma, medication side effects and stroke.

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Cocaine and methamphetamine abuse can also cause shrinkage of the pupils. Constricted pupils should be examined by a doctor, especially if they're accompanied by symptoms such as dizziness, light sensitivity and blurred vision. If only one pupil is constricted, it may be the result of a rare disorder known as Adie's pupil. Uneven pupils with drooping eyelids may be indications of serious conditions such as Horner's syndrome and third cranial nerve paralysis.

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    How do you dilate pupils on command?

    A:

    Thinking about dark places can be enough to dilate your pupils on command. Staring at something in the distance or letting your eyes fall relaxed and unfocused makes your pupils grow. Other methods for dilating your pupils include tensing your stomach or imagining yourself in a daring situation.

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    Why might pupils be small?

    A:

    Pupils may become small due to different causes, such as drug abuse, side effects of some medications and underlying medical issues, according to WebMD. Constricted or pinpoint pupils can be a symptom of taking or abusing opiates like morphine or heroin. Pupils become constricted because these opioid drugs stimulate a portion of the autonomic nervous system, states the EMT Spot.

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